@gravity-ui/data-source
Version:
A wrapper around data fetching
33 lines • 1.08 kB
JavaScript
import { notReachable } from '../notReachable';
describe('notReachable', function () {
it('should throw an error with default message', function () {
var callNotReachable = function callNotReachable() {
notReachable('test');
};
expect(callNotReachable).toThrow('Not reachable state: test');
});
it('should throw an error with custom message', function () {
var callNotReachable = function callNotReachable() {
notReachable('test', 'Custom error message');
};
expect(callNotReachable).toThrow('Custom error message');
});
it('should be used for exhaustive type checking', function () {
var getNumberName = function getNumberName(num) {
switch (num) {
case 1:
return 'one';
case 2:
return 'two';
case 3:
return 'three';
default:
return notReachable(num);
}
};
expect(getNumberName(1)).toBe('one');
expect(getNumberName(2)).toBe('two');
expect(getNumberName(3)).toBe('three');
});
});
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